Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Salt durability tests of repair mortars used in the restoration of porous limestones
Repair mortars mainly used in the restoration of porous limestone and sandstone were studied under laboratory conditions for salt durability. Cubic specimens of various types of repair mortars were exposed to sodium-sulphate solution by applying standard salt crystallization test methods. Loss of weight and changes of mechanical properties were detected. The response of repair mortar and porous limestone to typical wetting–drying experiments and salt exposure experiments were compared. Uniaxial compressive strength was measured after 14, 28 days of casting, while durability was assessed by comparing strength test results of samples kept dry conditions, in water or after salt exposition. The results show that damaging of limestones and repair mortars are closely related to material properties and especially to the pore-size distribution of samples. In: I. Ioannou, M Theodoridou (Eds.), SWBSS2011 -Salt weathering on Buildings and Stone Sculpture,19.-22. October, Limassol, Cyprus, S. 323-330, ISBN 978-9963-7355-1-8
Salt durability tests of repair mortars used in the restoration of porous limestones
Repair mortars mainly used in the restoration of porous limestone and sandstone were studied under laboratory conditions for salt durability. Cubic specimens of various types of repair mortars were exposed to sodium-sulphate solution by applying standard salt crystallization test methods. Loss of weight and changes of mechanical properties were detected. The response of repair mortar and porous limestone to typical wetting–drying experiments and salt exposure experiments were compared. Uniaxial compressive strength was measured after 14, 28 days of casting, while durability was assessed by comparing strength test results of samples kept dry conditions, in water or after salt exposition. The results show that damaging of limestones and repair mortars are closely related to material properties and especially to the pore-size distribution of samples. In: I. Ioannou, M Theodoridou (Eds.), SWBSS2011 -Salt weathering on Buildings and Stone Sculpture,19.-22. October, Limassol, Cyprus, S. 323-330, ISBN 978-9963-7355-1-8
Salt durability tests of repair mortars used in the restoration of porous limestones
Szemerey-Kiss, B. (Autor:in) / Török, A. (Autor:in) / HAWK Hildesheim/Holzminden/Göttingen, Hornemann Institut (Forscher:in)
2009
10 pages , 914 KB
Sonstige
Elektronische Ressource
Englisch
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